Finding the Fourth Proportional to 285,859.81, 394,434.36 and 164,956.98
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Solution
The fourth proportional to 285,859.81, 394,434.36 and 164,956.98 is: 227,610.52
Step by Step Solution
- Step 1: Write the proportion equation
285,859.81 : 394,434.36 = 164,956.98 : x - Step 2: Convert to fraction form
285,859.81/394,434.36 = 164,956.98/x - Step 3: Cross multiply
285,859.81x = 394,434.36 × 164,956.98 - Step 4: Simplify right side
285,859.81x = 65,064,700,833.83 - Step 5: Solve for x
x = 65,064,700,833.83/285,859.81 - Step 6: Final answer
x = 227,610.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.